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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 40, Iss. 30 — Oct. 20, 2001
  • pp: 5463–5473

Airborne interferometer for atmospheric emission and solar absorption

David W. Keith, John A. Dykema, Haijun Hu, Larry Lapson, and James G. Anderson  »View Author Affiliations


Applied Optics, Vol. 40, Issue 30, pp. 5463-5473 (2001)
http://dx.doi.org/10.1364/AO.40.005463


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Abstract

The interferometer for emission and solar absorption (INTESA) is an infrared spectrometer designed to study radiative transfer in the troposphere and lower stratosphere from a NASA ER-2 aircraft. The Fourier-transform spectrometer (FTS) operates from 0.7 to 50 µm with a resolution of 0.7 cm-1. The FTS observes atmospheric thermal emission from multiple angles above and below the aircraft. A heliostat permits measurement of solar absorption spectra. INTESA’s calibration system includes three blackbodies to permit in-flight assessment of radiometric error. Results suggest that the in-flight radiometric accuracy is ∼0.5 K in the mid-infrared.

© 2001 Optical Society of America

OCIS Codes
(000.2170) General : Equipment and techniques
(010.3920) Atmospheric and oceanic optics : Meteorology
(120.3180) Instrumentation, measurement, and metrology : Interferometry
(120.5630) Instrumentation, measurement, and metrology : Radiometry
(280.0280) Remote sensing and sensors : Remote sensing and sensors

History
Original Manuscript: November 16, 2000
Revised Manuscript: June 11, 2001
Published: October 20, 2001

Citation
David W. Keith, John A. Dykema, Haijun Hu, Larry Lapson, and James G. Anderson, "Airborne interferometer for atmospheric emission and solar absorption," Appl. Opt. 40, 5463-5473 (2001)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-40-30-5463

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